Slug ejecting mechanism of typographical slug casting machines



c. A. ALBRECHT 2,062,169

SLUG EJEGTING MECHANISM OF TYPOGBAPHICAL SLUG CASTING MACHINES Nov. 24, 1936.

Filed July 25, 1935 n m, wt ,z Q` :am m w ...7 g

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"afro/Wmv@ Patented Nov. 24, 1936 UNITED STATES PATENT OFFICE SLUG EJ ECTING MECHANISM OF TYPO- GRAPHICAL SLUG CASTING MACHINES Application July 25, 1935, serial No. 32,992 In Germany August 16, 1934 8 Claims.

This invention relates to slug-ejecting mechanism for typographical slug casting machines such as those known commercially under the registered trade-mark Linotype, wherein slugs or type bars cast in a slotted mould are delivered from the mould by means of an ejector pushed forwardly through the mould against the rear edge or foot of the slug. More particularly, the invention relates to an improved form of ejector specially adapted for dealing with both thin solid slugs and thick slugs, whether the latter are solid or U-shaped in cross-section, or formed with ribs cast on the body portion of the slug.

Ejecting mechanism ordinarily employed comprises a comparatively thin ejector blade which serves for the ejection of both very thin slugs and thicker slugs which latter may give rise to difliculties owing to tilting of the slug during ejection or owing to the ejector blade becoming embedded in the foot of the slug. It has been proposed to employ a plurality of ejector blades of respectively different thicknesses carried in a magazine which can be laterally adjusted to bring any desired blade into operative connection with the ejector slide, which arrangement has necessitated the interchange of blades in the magazine or the substitution of one ejector blade magazine for another when adapting the mechanism to different lengths and thicknesses of slugs beyond a somewhat limited range.

It has further been proposed to employ a set of superposed ejector blade sections any desired number of which can be coupled to the ejector slide for the ejection of thin slugs of different lengths, in conjunction with a second set of ejector blades which, by an additional adjustment, can be coupled to the slide conjointly with the blades of the rst set for the ejection of thicker slugs.

According to the invention the necessity for changing or adjustment of the ejector blades is avoided, and a simplified automatic adaptation to the width of the slug rendered possible by the employment of a resilient auxiliary ejector actuated in common with the main ejector blade, which auxiliary ejector, when not needed for the ejection of the slug, bears against the mould and is held back thereby.

The invention is hereinafter described with reference to the accompanying drawing illustrating one constructional form thereof. In the said drawing:

Figure 1 is a side elevation of the ejecting mechanism;

Figure 2 is a section taken on the line A-B of Figure l, showing the action of the parts when ejecting a thick slug; and

Figure 3 is a View similar to Figure 2 showing the inoperative condition of the auxiliary ejectorvwhen a thin slug is ejected.

The ej-ector mechanism illustrated in the drawing comprises an ejector slide a, actuated by the main driving Vmechanism of the machine through a link b, and an ejector blade c attached to the slide a, for example by screws c1. The slide a is guided in the machine frame d, and when it is moved forward, the ejector blade c pushes the slug out of the mould e.

According to the invention, the ejection of thick slugs is facilitated and tilting of such slugs during ejection prevented, by providing one or more auxiliary ejector blades g yieldingly mounted on the ejector slide to supplement the action of the blade c at a different position in relation to the foot of the slug.

In the constructional example illustrated, two narrow ejector blades g are fastened by screws h to slides i longitudinally movable Within recesses k formed in the ejector slide a. Each slide iis formed with bifurcations extending into the respective recess lc and is secured therein by a cover plate q which may be provided with an aperture r. An abutment plate n extending over the ends of the recesses lc determines the operative position of the slides i, and each slide is yieldingly held against said abutment plate by a spring m encircling pins o and p attached to the slide z' and ejector slide a respectively. The ejector g may be removed and substituted by others to increase the distance between the main and auxiliary ejectors, to provide for the ejection of slugs of still greater thickness.

The operation of the device will be understood by'reference to Figures 2 and 3. Figure 2 shows the ejection from the mould e of a thick slug f, U-shaped in cross-section, for which the auxiliary ejectors g act at the foot of one wall of the slug while the ejector e acts on the foot of the other wall of the slug. The springs m are of suicient strength to overcome the friction of the slug against the mould and to ensure the rectilinear ejection of the slug. When a thin solid slug s is ejected, as shown in Figure 3, the auxiliary ejectors g bear against the rear face of the mould, and the springs m are compressed, the ejector blade c alone being operative.

It is to be understood that the constructional form of auxiliary ejectors above described has been chosen merely as a convenient example,

and that changes and modications may be made therein Without departing from the invention. For example, a single wide auxiliary ejector blade may be used in place of a plurality of narrow blades, for the ejection of U-shaped slugs, and for ribbed slugs auxiliary blades of the width of the ribs may be used, said blades being arranged edgewise in relation to the main ejector blade. The invention can also be advantageously employed for thick solid slugs.

Having described my invention, I declare that what I claim and desire'to secure by Letters Patent is:-

1. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide, a main ejector blade rigidly secured to the slide and operable by the actuation of the slide to eject a thin slug, and an auxiliary -ejector blade disposed alongside the main ejector blade and operable conjointly therewith for the ejection of a thick slug, said auxiliary ejector blade being mounted on the slide with a capacity for yielding longitudinally relatively thereto during its actuation for the ejection of a thin slug.

2. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide, a main ejector blade rigidly secured to the slide and operable by the actuation of the slide toeject a thin slug, an auxiliary ejector blade carried by the slide and operable conjointly with the main ejector for the ejection of a thick slug, and a spring normally holding the auxiliary ejector blade in operative position relatively to the slide and permitting it to yield longitudinally of the slide lwhen the latter is actuated for the ejection of a thin slug.

3. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide, a main ejector blade rigidly secured to the slide and operable by the actuation of the slide to eject a thin slug, an auxiliary ejector blade mounted on the slide in parallel relationship to the main ejector blade and operable conjointly therewith for the ejection of a thick slug, and a spring normally holding the auxiliary ejector blade in operative position relatively to the slide and permitting it to yield longitudinally of the slide when the latter is actuated for the ejection of a thin slug.

4. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide, a main ejector blade rigidly secured to the slide and operable by the actuation of the slide to eject a thin slug, a plurality of superposed auxiliary ejector blades mounted on the slide in parallel relationship to the main ejector blade, and a spring normally holding each auxiliary ejector blade in operative position relatively to the slide and permitting it to yield longitudinally of the slide when the latter is actuated'for the ejection of a thin slug.

5. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide, a main ejector blade rigidly secured to the slide and operable by the actuation of the slide to eject a thin slug, a plurality of superposed auxiliary ejector blades mounted on the slide in edgewise relationship to the main ejector blade, and a spring normally holding each auxiliary ejector blade in operative position relatively to the slide and permitting it to yield longitudinally of the slide when the latter is actuated for the ejection of a thin slug.

6. In slug ejecting mechanism for typographical slug casting machines, the combination of an ejector slide formed with longitudinal recess in one side, a main ejector blade rigidly secured to the slide, a plurality of superposed auxiliary ejector blades slidable within the recesses in the ejector slide, an abutment associated with each recess limiting the movement of the respective auxiliary ejector blade outwardly, and a spring appropriate to each auxiliary ejector blade normally holding said blade in engagement with the abutment.

7. A slug ejecting mechanism for typographical slug casting machines comprising an ejector proper self-adjustable as to effective thickness to cooperate with molds of different slot Widths.

8. A slug ejecting mechanism for typographical slug casting machines comprising a mair ejector blade, and an auxiliary ejector blade arranged alongside the main ejector blade to 1ncrease the effective thickness or the ejector as a whole, said auxiliary ejector blade being rendered operative or inoperative by cooperation with molds of different slot widths.

CHRISTIAN AUGUSTUS ALBRECHT. 

